Ltsp WebVncViewer
Note: This has only been tested on <= LTSP 4.0 for 4.2, see below
#!/bin/sh
#
# vncviewer
#
#Parameters
#
# VNC_SERVER = your.vnc.server
# The ip, or hostname of the VNC server
# Default is none
PATH=/bin:$PATH; export PATH
#
# Get the lts.conf entries
#
eval `/bin/getltscfg -a`
DEFAULT_SERVER=
XDM_SERVER=${XDM_SERVER:-${SERVER}}
VNC_SERVER=${VNC_SERVER:-${DEFAULT_SERVER}}
VNC_OPTIONS=${VNC_OPTIONS:-"-depth 24"}
TTY=`/usr/bin/basename \`/usr/bin/tty\``
XFCFG=/tmp/XF86Config.${TTY}
export TTY
if [ $# -lt 1 ]; then
XF_ARGS=""
else
XF_ARGS=$*
fi
################################################################################
#
# Setup the XF86Config file
#
XSERVER=${XSERVER:-"auto"}
if [ "${XSERVER}" = "auto" ]; then
echo "Scanning for video card"
XSERVER=`/sbin/pci_scan /etc/vidlist`
if [ -z "${XSERVER}" ]; then
echo
echo " ERROR: Auto probe of the video card failed !"
echo " You need to specify the proper X server in lts.conf"
echo
echo -n "Press <enter> to continue "
read CMD
exit 1
fi
fi
if [ "${XSERVER}" = "i810" ]; then
if [ ! -f /tmp/i810_loaded ]; then
modprobe agpgart
>/tmp/i810_loaded
fi
fi
if [ ! -z "${XF86CONFIG_FILE}" ]; then
#
# If XF86CONFIG_FILE is defined in the lts.conf file, then
# it points to an XF86Config file that is pre-made for a workstation
#
if [ -f /etc/${XF86CONFIG_FILE} ]; then
cp /etc/${XF86CONFIG_FILE} ${XFCFG}
else
echo
echo "Error! - ${XF86CONFIG_FILE} - File not found!"
echo
fi
else
#
# Build the XF86Config file from entries in the lts.conf file
# If it starts with 'XF86_', then we use XFree86 3.3.6. Otherwise,
# we use XFree86 4.x
#
case ${XSERVER} in
XF86_*) /etc/build_x3_cfg ${XSERVER} >${XFCFG}
;;
*) /etc/build_x4_cfg ${XSERVER} >${XFCFG}
;;
esac
fi
################################################################################
#
# Figure out how to run the X server
#
case ${XSERVER} in
XF86_*) XBINARY="${XSERVER}"
XOPTS=""
;;
Xvesa) XBINARY="Xvesa"
case "${X_MODE_0}" in
1280x1024) XOPTS="-shadow -mode 0x011A"
;;
1024x768) XOPTS="-shadow -mode 0x0117"
;;
800x600) XOPTS="-shadow -mode 0x0114"
;;
640x480) XOPTS="-shadow -mode 0x0111"
;;
*) XOPTS="-shadow -mode 0x0117"
;;
esac
;;
*) XBINARY="XFree86"
XOPTS=""
;;
esac
ACCESS_CONTROL=${DISABLE_ACCESS_CONTROL:-"N"}
if [ "${ACCESS_CONTROL}" = "Y" ]; then
ACC_CTRL="-ac"
else
ACC_CTRL=""
fi
if [ "${XF_ARGS}" = "" ]; then
XF_ARGS="-query ${XDM_SERVER}"
fi
#Build start_vnc script
cat <<EOF >/tmp/start_vnc
if [ "${VNC_SERVER}" != "" ]; then
echo "Vncviewer*passwordDialog.dialog.label: Password for ${VNC_SERVER}: " | \
/usr/X11R6/bin/xrdb -nocpp -merge
fi
/usr/X11R6/bin/vncviewer -encodings "copyrect hextile" ${VNC_OPTIONS} ${VNC_SERVER}
EOF
chmod +x /tmp/start_vnc
clear
if [ -w /proc/progress ]; then
/usr/X11R6/bin/xinit /tmp/start_vnc \
-- /usr/X11R6/bin/${XBINARY}\
-xf86config ${XFCFG} \
vt${TTY} >/dev/tty3 2>&1
else
/usr/X11R6/bin/xinit /tmp/start_vnc \
-- /usr/X11R6/bin/${XBINARY}\
-xf86config ${XFCFG} \
vt${TTY}
fi
-- BobBlanchard - 15 Dec 2004
Just tested this with LTSP 4.2 (first wiki post - please be gentle):
copied the /opt/ltsp/i386/etc/screen.d/rdesktop script to /opt/ltsp/i386/etc/screen.d/vnc, modified it and used the static enhanced vncviewer which is in the package enhanced_tightvnc_viewer_no_windows.
The modified screen.d/vnc script looks like this:
#!/bin/sh
#
# vnc
#
# vnc screen script for the linux terminal server project.
# This script lives in the /opt/ltsp/i386/etc/screen.d directory
#
# Call it through lts.conf with the `SCREEN_xx = vnc` option.
#
# You can pass options to vnc 2 different ways.
#
# 1) Place all of the options you want after the 'vnc' setting
# on the screen_script.
#
# For example:
#
# SCREEN_01 = vnc vnc.i-nex.de::5900
#
#
# 2) Place the VNC options in the VNC_OPTIONS option
# and the name or IP address of the VNC server in
# the VNC_SERVER option.
#
# For example:
#
# VNC_OPTIONS = "-depth 24"
# VNC_SERVER = vnc.i-nex.de::5900
# SCREEN_01 = vnc
#
PATH=/bin:$PATH; export PATH
. /etc/ltsp_functions
#
# Get the lts.conf entries
#
eval `/bin/getltscfg -a`
VNC_OPTIONS=${VNC_OPTIONS:-""}
reg_info VNC_SERVER
reg_info VNC_OPTIONS
TTY=`/usr/bin/basename \`/usr/bin/tty\` | sed s/tty//`
XFCFG=/tmp/XF86Config.${TTY}
export TTY
VNCDESKTOP_OPTIONS="${VNC_OPTIONS} $* ${VNC_SERVER}"
#
# Setup the DISP variable
#
export DISP=:$(expr ${TTY} - 1).0
################################################################################
#
# Setup the XF86Config file
#
XSERVER=${XSERVER:-"auto"}
if [ "${XSERVER}" = "auto" ]; then
echo "Scanning for video card"
XSERVER=`/sbin/pci_scan /etc/vidlist`
if [ -z "${XSERVER}" ]; then
echo
echo " ERROR: Auto probe of the video card failed !"
echo " You need to specify the proper X server in lts.conf"
echo
echo -n "Press <enter> to continue "
read CMD
exit 1
fi
fi
if [ "${XSERVER}" = "i810" ]; then
if [ ! -f /tmp/i810_loaded ]; then
modprobe agpgart
>/tmp/i810_loaded
fi
fi
if [ ! -z "${XF86CONFIG_FILE}" ]; then
#
# If XF86CONFIG_FILE is defined in the lts.conf file, then
# it points to an XF86Config file that is pre-made for a workstation
#
if [ -f /etc/${XF86CONFIG_FILE} ]; then
cp /etc/${XF86CONFIG_FILE} ${XFCFG}
else
echo
echo "Error! - ${XF86CONFIG_FILE} - File not found!"
echo
fi
else
#
# Build the XF86Config file from entries in the lts.conf file
# If it starts with 'XF86_', then we use XFree86 3.3.6. Otherwise,
# we use Xorg
#
case ${XSERVER} in
XF86_*) /etc/build_x3_cfg ${XSERVER} >${XFCFG}
;;
*) /etc/build_x4_cfg ${XSERVER} >${XFCFG}
;;
esac
fi
################################################################################
#
# Figure out how to run the X server
#
case ${XSERVER} in
XF86_*) XBINARY="${XSERVER}"
XOPTS=""
;;
Xvesa) XBINARY="Xvesa"
case "${X_MODE_0}" in
1280x1024) XOPTS="-shadow -mode 0x011A"
;;
1024x768) XOPTS="-shadow -mode 0x0117"
;;
800x600) XOPTS="-shadow -mode 0x0114"
;;
640x480) XOPTS="-shadow -mode 0x0111"
;;
*) XOPTS="-shadow -mode 0x0117"
;;
esac
;;
*) XBINARY="Xorg"
XOPTS=""
;;
esac
ACCESS_CONTROL=${DISABLE_ACCESS_CONTROL:-"N"}
if [ "${ACCESS_CONTROL}" = "Y" ]; then
ACC_CTRL="-ac"
else
ACC_CTRL=""
fi
clear
echo
echo
echo
echo
echo
echo
echo
echo
echo
echo
echo
echo
#echo -n " Press <enter> to Login "
#read
if [ -w /proc/progress ]; then
/usr/X11R6/bin/xinit /usr/bin/vncdesktop.wrapper \
-u "" \
${VNCDESKTOP_OPTIONS} \
-- /usr/X11R6/bin/${XBINARY}\
${DISP} \
-xf86config ${XFCFG} \
vt${TTY} >/dev/null 2>&1
else
/usr/X11R6/bin/xinit /usr/bin/vncdesktop.wrapper \
-u "" \
${VNCDESKTOP_OPTIONS} \
-- /usr/X11R6/bin/${XBINARY}\
${DISP} \
-xf86config ${XFCFG} \
vt${TTY}
fi
I also modified the /opt/ltsp/i386/usr/bin/rdesktop.wrapper script by copying it to /opt/ltsp/i386/usr/bin/vncdesktop.wrapper and changing the rdesktop line within to the vncviewer path. I copied the /enhanced_tightvnc_viewer/bin/Linux.i686/vncviewer static binary from the enhanced_tightvnc_viewer_no_windows package to /opt/ltsp/i386/usr/bin/ and put this in the lts.conf file:
SCREEN_04 = vnc
VNC_SERVER = vnc.i-nex.de::5900
VNC_OPTIONS = "-depth 24"
I hope I didn't forget anything and "Works for me (TM)" 
-- UdoPuetz - 28 Aug 2006
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